1202210109172 has 12 divisors (see below), whose sum is σ = 2227624614180. Its totient is φ = 565745933696.

The previous prime is 1202210109167. The next prime is 1202210109173. The reversal of 1202210109172 is 2719010122021.

It can be written as a sum of positive squares in 2 ways, for example, as 1112548191076 + 89661918096 = 1054774^2 + 299436^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1202210109172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202210109173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8839780147 + ... + 8839780282.

It is an arithmetic number, because the mean of its divisors is an integer number (185635384515).

Almost surely, 2^{1202210109172} is an apocalyptic number.

It is an amenable number.

1202210109172 is a deficient number, since it is larger than the sum of its proper divisors (1025414505008).

1202210109172 is a wasteful number, since it uses less digits than its factorization.

1202210109172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17679560450 (or 17679560448 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 1202210109172 in words is "one trillion, two hundred two billion, two hundred ten million, one hundred nine thousand, one hundred seventy-two".